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#! /bin/sh
#
# mksyms.sh
#
# Extract symbols to export from C-header files.
# output in version-script format for linking shared libraries.
#
# This is the shell warpper for the mksyms.awk core script.
#
# Copyright (C) 2008 Micheal Adam <obnox@samba.org>
#
LANG=C; export LANG
LC_ALL=C; export LC_ALL
LC_COLLATE=C; export LC_COLLATE
if [ $# -lt 3 ]
then
echo "Usage: $0 awk versionfile output_file header_files"
exit 1
fi
awk="$1"
shift
versionfile="$1"
shift
symsfile="$1"
shift
symsfile_tmp="$symsfile.$$.tmp~"
libname=`basename $symsfile | cut -d '.' -f1`
verline=`grep $libname $versionfile`
majver=`echo -n "$verline" | cut -d ':' -f2`
minver=`echo -n "$verline" | cut -d ':' -f3`
upname=`echo -n "$libname" | sed -e 's/^lib//' | tr '[a-z]' '[A-Z]'`
symver="${upname}_${majver}.${minver}"
symsext=`basename $symsfile | cut -d '.' -f2-`
if test x"$symsext" = x"version.syms"; then
echo "creating $symsfile for $symver"
else
echo "creating $symsfile"
symver="# no symbol versioning"
fi
proto_src="`echo $@ | tr ' ' '\n' | sort | uniq `"
mkdir -p `dirname $symsfile`
cat > $symsfile_tmp <<_ACEOF
#
# This file is automatically generated with "$0". DO NOT EDIT
#
$symver
_ACEOF
${awk} -f `dirname $0`/mksyms.awk $proto_src >> $symsfile_tmp
if cmp -s $symsfile $symsfile_tmp 2>/dev/null
then
echo "$symsfile unchanged"
rm $symsfile_tmp
else
mv $symsfile_tmp $symsfile
fi
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